Re: ignition cylinder not returning to off for key...
If you reach in under the steering wheel behind the plastic cover you'll feel a round metal cylinder. on the top close to the plastic will be a button and its the only way i can get my keys out. Second option is if you look on the plastic its self you'll see a round cap that you can pry off and stick a pencil into that will depress the same button. Its been an ongoing problem with chev aparently. Good luck
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What make vehicle ? Most all vehicles have a safety system .Don't try an force anything you'll break it ! Electronic Park Lock (EPL)/Ignition Lock Cylinder Control Actuator: If the vehicle is equipped with automatic transmission and a floor mounted console gear shift, it has an ignition lock cylinder control actuator system in the steering column. The ignition lock cylinder control actuator purpose is to prevent the ignition key from being turned to the OFF position when the transmission is in any position other than PARK and the vehicle may still be moving. The column ignition lock system consists of an ignition lock cylinder control actuator, and a park position switch that is located in the automatic transmission shift lock control switch. The ignition lock cylinder control actuator contains a pin that is spring loaded to mechanically prevent the ignition key cylinder from being turned to the lock position when the vehicle transmission is not in the PARK position. If vehicle power is lost, and/or the transmission is not in the PARK position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column. They also have this on column mounted shifters !
try to remove the shifter from park and then back.there is a cable that runs from the shifter to the ignition switch to prevent removing the key without vehicle shifter in park. if it is the electronic type,then the switch located at the shifter is busted. the problem is most likely at the shifter
Fixing stuck key in your gmc envoy same as a blazer !
Ignition Lock Cylinder Control Actuator
If the vehicle is equipped with a floor mounted console gear shifter, it has a ignition lock cylinder control actuator system in the steering column as an added safety feature. The ignition lock cylinder control actuators purpose is to prevent the steering wheel from being locked when the transmission is in gear and the vehicle may still be moving. The column ignition lock system consists of a ignition lock cylinder control acutator, and a park position switch that is located in the A/T shift lock control switch. The ignition lock cylinder control acutator contains a pin that is spring loaded out to mechanically prevent the ignition key cylinder from being turned to the lock position when vehicle transmission is not in the Park position. If vehicle power is lost, and/or the transmission is not in the Park position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column.
Most newer models have a safety feature called shift interlock. This prevents the key from being turned back to the lock position if you forget to place the gear selector in park. Depending on the model, If it uses a cable, it may be sticking or needs adjusting. If it uses an electrical solenoid. may be blown fuse or park switch. Tap, shake, and pull up on the shifter and make sure it's in park.
Ignition - Key Stuck In Ignition Switch/Won't Turn
Bulletin No.: 06-02-35-005
Date: February 28, 2006
Key Stuck in Ignition, Key Will Not Return to Off Position, Shifter Button Won't Release in Park Position (Adjust Shifter Detent Finger)
2002-2005 Chevrolet Monte Carlo
Customers may comment on any of the following conditions:
- The key is stuck in the ignition cylinder.
- They cannot return the key to the off position to remove the key.
- The shifter button won't release in the park position.
This condition may be caused by the detent finger shifting over time. This may result in mis-alignment and binding of the shift rod on the shift position guide.
WHERE YOUR SHIFTER IS YOU WILL HAVE TO TAKE IT APART ..MAYBE THE RUBBER BOOT IS IT THE WAY,OR THE SHIFT LOCK SELINOID WHENT BAD
FIRST OF ALL, TURN OFF RADIO,DISCONNECT NEGATIVE BATTERY CABLE. IF EQUIPPED WITH TILT STEERING COLUMN,REMOVE TILT LEVER.CAREFULLY REMOVE THE UPPER AND LOWER STEERING COLUMN COVERS. REMOVE THE 3 TAMPER PROOF TORX IGNITION SWITCH MOUNTING SCREWS USING SNAP ON TOOL TTXR15A2 OR EQUIVALENT. GENTLY PULL THE SWITCH AWAY FROM THE COLUMN AND REMOVE THE 2 ELECTRICAL CONNECTORS FROM THE IGNITION SWITCH. WITH THE KEY IN THE LOCK POSITION, DEPRESS THE KEY CYLINDER RETAINING PIN FLUSH WITH THE KEY CYLINDER SURFACE. ROTATE THE KEY CLOCKWISE TO THE OFF POSITION THE KEY CYLINDER SHOULD NOW BE UNSEATED. ROTATE THE KEY CYLINDER COUNTER CLOCKWISE BACK TO THE LOCK POSITION, AND REMOVE THE LOCK CYLINDER. ( TO INSTALL ) CONNECT THE ELECTRICAL CONNECTORS TO THE IGNITION SWITCH. BE SURE THE CONNECTORS ARE SECURELY LOCKED IN PLACE. MOUNT THE IGNITION SWITCH TO THE COLUMN 3 SCREWS FOR VECHICLES WITH THE TILT STEERING COLUMN THE SHIFTER MUST BE IN THE PARK POSITION AND THE PARK LOCK DOWEL PIN AND THE COLUMN LOCK FLAG MUST BE INDEXED BEFORE THE SWITCH IS INSTALLED. PLACE SHIFTER IN THE PARK POSITION. PLACE THE IGNITION SWITCH IN THE LOCK POSITION. THE SWITCH IS IN THE LOCK POSITION WHEN THE STEERING COLUMN LOCK FLAG IS PARALLEL TO THE IGNITION SWITCH TERMINALS. POSITION THE PARK LOCK DOWEL PIN OF THE IGNITION SWITCH SO IT ENGAGES THE STEERING COLUMN PARK LOCK SLIDER LINKAGE. APPLY A LIGHT COATING OF GREASE TO THE PARK LOCK DOWEL PIN AND THE COLUMN LOCK FLAG. POSITION THE IGNITION SWITCH AGAINST THE LOCK HOUSING OPENING ON THE STEERING COLUMN. BE SURE THE SWITCH PARK LOCK DOWEL PIN ENTERS THE SLOT IN THE PARK LOCK SLIDER LINKAGE INSTALL THE RETAINING SCREW AND BRACKET. TORQUE THE SCREW TO 26 INCH LBS. INSTALL THE STEERING COLUMN COVERS AND THE TILT LEVER IF REMOVED. WITH THE KEY CYLINDER AND THE IGNITION IN THE LOCK POSITION INSTALL THE KEY CYLINDER INTO THE SWITCH UNTIL IT BOTTOMS. RECONNECT THE NEGATIVE BATTERY CABLE AND THE CHECK THE IGNITION SWITCH FOR PROPER OPERATION OF HALO LIGHT SHIFT LOCK IF EQUIPPED AND COLUMN LOCK.ALSO CHECK FOR PROPER OPERATION OF THE IGNITION SWITCH ACCESSORY, LOCK OFF, RUN AND START FUNCTIONS.
Some can be repaired the first thing is to try a little wd40 in the key hole and work key in ignition, the spring back action is done by the switch not the ignition cylinder locjk, but if the lock binds up it will cause it not to return, so start with the lube, after a few days if it still doesnt return then remove covers and replace the switch on the back of key switch. hope this helps, most of the time the lube works.
under the steering column, there are three or four little holes in the plastic covering. If you look inside, one of them (the one on the right side toward the dash) there is a brass pin inside. This is the pin to release the key. As far as the key not turning, I have had the same problem. The first time I replaced the ignition switch and that solved the problem. However, this makes no sense because the ignition switch has nothing to do with the tumbler being locked. GMC thinks that my anti theft system, which is inside the ignition cylinder is the problem. By removing the ignition switch, it reset the pass lock anti-theft system and temporarily fixed the problem. So, try removing the ignition switch and then plugging it back in. If that doesn't work, your in the same boat as I am, and we may both need new ignition cylinders.